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author | Sascha Hauer <s.hauer@pengutronix.de> | 2007-07-12 12:12:34 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2007-07-12 12:12:34 +0200 |
commit | d757720766629dcd94af70ea65ccd8ba5eb47e4b (patch) | |
tree | 1263204fa6e46fc3555f232b81e6c9ce2bd13df2 /arch/sandbox/board/hostfile.c | |
parent | 2557787389f8ec40381d1201a15badd25d4aab10 (diff) | |
download | barebox-d757720766629dcd94af70ea65ccd8ba5eb47e4b.tar.gz barebox-d757720766629dcd94af70ea65ccd8ba5eb47e4b.tar.xz |
arch/linux -> arch/sandbox
Diffstat (limited to 'arch/sandbox/board/hostfile.c')
-rw-r--r-- | arch/sandbox/board/hostfile.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/sandbox/board/hostfile.c b/arch/sandbox/board/hostfile.c new file mode 100644 index 0000000000..af8b82ca19 --- /dev/null +++ b/arch/sandbox/board/hostfile.c @@ -0,0 +1,95 @@ +/* + * hostfile.c - use files from the host to simalute U-Boot devices + * + * Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <common.h> +#include <driver.h> +#include <malloc.h> +#include <asm/arch/linux.h> +#include <init.h> +#include <errno.h> +#include <asm/arch/hostfile.h> +#include <xfuncs.h> + +ssize_t hf_read(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags) +{ + struct hf_platform_data *hf = dev->platform_data; + int fd = hf->fd; + + if (linux_lseek(fd, offset) != offset) + return -EINVAL; + + return linux_read(fd, buf, count); +} + +ssize_t hf_write(struct device_d *dev, const void *buf, size_t count, ulong offset, ulong flags) +{ + struct hf_platform_data *hf = dev->platform_data; + int fd = hf->fd; + + if (linux_lseek(fd, offset) != offset) + return -EINVAL; + + return linux_write(fd, buf, count); +} + +static void hf_info(struct device_d *dev) +{ + struct hf_platform_data *hf = dev->platform_data; + + printf("file: %s\n", hf->filename); +} + +static struct driver_d hf_drv = { + .name = "hostfile", + .probe = dummy_probe, + .read = hf_read, + .write = hf_write, + .info = hf_info, + .type = DEVICE_TYPE_BLOCK, +}; + +static int hf_init(void) +{ + return register_driver(&hf_drv); +} + +device_initcall(hf_init); + +int u_boot_register_filedev(struct hf_platform_data *hf, char *name_template) +{ + struct device_d *dev; + + dev = xzalloc(sizeof(struct device_d)); + + dev->platform_data = hf; + + hf = dev->platform_data; + + strcpy(dev->name,"hostfile"); + get_free_deviceid(dev->id, name_template); + dev->size = hf->size; + dev->map_base = hf->map_base; + dev->type = DEVICE_TYPE_BLOCK; + + return register_device(dev); +} + |